EP 1553339 B1 20080625 - Flow control valve and flow control device
Title (en)
Flow control valve and flow control device
Title (de)
Durchflussregelventil und Durchflussregelvorrichtung
Title (fr)
Soupape de contrôle de débit et dispositif de contrôle de débit
Publication
Application
Priority
JP 2004001131 A 20040106
Abstract (en)
[origin: EP1553339A1] There are provided a flow control valve and a flow control device suitable for allowing flow control of a fluid with high accuracy. Diaphragms 8 and 9 are mounted to upper and lower openings, respectively, of an air chamber 6. The upper diaphragm 8 and the lower diaphragm 9 are connected by a connecting shaft 10 and have pressurized surfaces with different areas that receive pressure of the air chamber 6. This causes a difference between forces applied to the two diaphragms 8 and 9, and the difference causes the connecting shaft 10 and a valve body 2 mounted to an outer surface of the lower diaphragm 9 to slide and be separated from a valve seat 23. <IMAGE>
IPC 8 full level
F16K 31/126 (2006.01); F16K 31/12 (2006.01); G05D 7/06 (2006.01); G05D 16/18 (2006.01)
CPC (source: EP KR US)
F16K 1/34 (2013.01 - KR); F16K 27/02 (2013.01 - KR); F16K 31/1262 (2013.01 - KR); F16K 31/1268 (2013.01 - EP KR US); G05D 16/185 (2013.01 - EP KR US); Y10T 137/7759 (2015.04 - EP US); Y10T 137/7761 (2015.04 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1553339 A1 20050713; EP 1553339 B1 20080625; AT E399281 T1 20080715; CN 100366961 C 20080206; CN 1654863 A 20050817; DE 602005007637 D1 20080807; JP 2005196401 A 20050721; JP 3583123 B1 20041027; KR 100675747 B1 20070129; KR 20050072393 A 20050711; TW 200523491 A 20050716; TW I257985 B 20060711; US 2005145278 A1 20050707; US 7163024 B2 20070116
DOCDB simple family (application)
EP 05090002 A 20050103; AT 05090002 T 20050103; CN 200410098146 A 20041029; DE 602005007637 T 20050103; JP 2004001131 A 20040106; KR 20040087395 A 20041029; TW 93132388 A 20041026; US 425804 A 20041203